BoilerFaultCodesVokera 09 Fault Code
The Vokera 09 fault code means: your boiler's electronic control board has developed a fault, meaning the internal computer can no longer communicate with the rest of the system.. It appears on 13 Vokera models in our database.
Technical description: PCB fault
What causes the Vokera 09 fault?
This fault occurs when the boiler's internal computer experiences a critical electronic failure or a breakdown in its communication circuits. It is often caused by an electrical surge, moisture ingress reaching the control panel, or simply the natural degradation of the solder joints and components over several years of use.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
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A cover plan would handle faults like 09: no call-out fees, no surprise bills.
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Vokera models that show the 09 fault code
Click a model for the full fault code list and model-specific repair notes.
- Easi-Heat I Repair: £120-£350
- Eclipse Repair: £250-450
- Linea 28 Repair: £220-450
- Linea 7 Repair: £220-450
- Linea HE Repair: £120-£350
- Linea Plus AG Repair: £150-350
- Mynute 28E / 35E Repair: £120-250
- Synergy 25 E Repair: £250-450
- Synergy E Repair: £250-£450
- Syntesi 25 Repair: £250-450
- Syntesi 25E / 29E Repair: £250-400
- Syntesi 29 Repair: £250-450
- Syntesi E Repair: £250-450
Source
Vokera 09 fault code information on this page is sourced and cross-checked against the official Vokera service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026